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author | Jacob Schatz <jschatz@gitlab.com> | 2017-03-14 14:29:49 +0000 |
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committer | Jacob Schatz <jschatz@gitlab.com> | 2017-03-14 14:29:49 +0000 |
commit | 8f66751179bf97d92fa0b9e85fd5336b40f990ea (patch) | |
tree | abd805c739a3f807684602fced38d7f3287913a9 | |
parent | 05acb4057a02d1c89f76ea178050c18272d2e832 (diff) | |
parent | de16915b214f04884e8eab8c1ada52a2a4818f7a (diff) | |
download | gitlab-ce-8f66751179bf97d92fa0b9e85fd5336b40f990ea.tar.gz |
Merge branch '29326-update-documentation' into 'master'
Adds best practices regarding context and vue to documentation
See merge request !9870
-rw-r--r-- | doc/development/frontend.md | 34 |
1 files changed, 32 insertions, 2 deletions
diff --git a/doc/development/frontend.md b/doc/development/frontend.md index d646de7c54a..e7add17fe2d 100644 --- a/doc/development/frontend.md +++ b/doc/development/frontend.md @@ -66,6 +66,8 @@ Let's look into each of them: This is the index file of your new feature. This is where the root Vue instance of the new feature should be. +The Store and the Service should be imported and initialized in this file and provided as a prop to the main component. + Don't forget to follow [these steps.][page_specific_javascript] **A folder for Components** @@ -86,7 +88,7 @@ You can read more about components in Vue.js site, [Component System][component- **A folder for the Store** -The Store is a simple object that allows us to manage the state in a single +The Store is a class that allows us to manage the state in a single source of truth. The concept we are trying to follow is better explained by Vue documentation @@ -289,7 +291,7 @@ When exactly one object is needed for a given task, prefer to define it as a `class` rather than as an object literal. Prefer also to explicitly restrict instantiation, unless flexibility is important (e.g. for testing). -``` +```javascript // bad gl.MyThing = { @@ -332,6 +334,33 @@ gl.MyThing = MyThing; ``` +### Manipulating the DOM in a JS Class + +When writing a class that needs to manipulate the DOM guarantee a container option is provided. +This is useful when we need that class to be instantiated more than once in the same page. + +Bad: +```javascript +class Foo { + constructor() { + document.querySelector('.bar'); + } +} +new Foo(); +``` + +Good: +```javascript +class Foo { + constructor(opts) { + document.querySelector(`${opts.container} .bar`); + } +} + +new Foo({ container: '.my-element' }); +``` +You can find an example of the above in this [class][container-class-example]; + ## Supported browsers For our currently-supported browsers, see our [requirements][requirements]. @@ -457,3 +486,4 @@ Scenario: Developer can approve merge request [eslintrc]: https://gitlab.com/gitlab-org/gitlab-ce/blob/master/.eslintrc [team-page]: https://about.gitlab.com/team [vue-section]: https://docs.gitlab.com/ce/development/frontend.html#how-to-build-a-new-feature-with-vue-js +[container-class-example]: https://gitlab.com/gitlab-org/gitlab-ce/blob/master/app/assets/javascripts/mini_pipeline_graph_dropdown.js |